Showing 191 - 200 of 260 Conference Paper Results
2019
UKAEA-RACE-CP(19)04
14th International Symposium on Fusion Nuclear Technology (ISFNT-14) Budapest,Hungary, 22-27 September 2019
T. Tremethick S. Kirk K. Keogh A. O’Hare E. Harford B. Quirk
As part of the European Research Roadmap to the Realisation of Fusion Energy, the DEMO reactor aims to show the feasibility of a fusion power plant. Due to the loss of revenue created by downtime and the potential for a breakdown to render a reactor inoperable, maintenance is “mission critical” for a power plant. The harsh environment of a fusi…
Preprint Published2019
UKAEA-CCFE-CP(19)53
46th European Physical Society Conference on Plasma Physics (EPS), Milan, 8-12 July 2019
S.F. Smith S.J.P. Pamela M. Hölzl G.T.A. Huijsmans A. Kirk D. Moulton A.J. Thornton H.R. Wilson
During edge localised modes (ELMs) high heat fluxes are incident on divertor targets, which future fusion devices will not withstand [1]. A solution to reduce the heat fluxes could be the new Super-X divertor, which will be tested on the MAST-U tokamak. The divertor has an increased connection length, magnetic flux expansion and is designed to reta…
Preprint Published2019
UKAEA-CCFE-CP(19)52
46th European Physical Society Conference on Plasma Physics (EPS), Milan, 8-12 July 2019
L. Piron T. C. Hender E. Joffrin F. Auriemma P. Buratti R. Paccagnella P. Zanca C. Challis S. Gerasimov R. B. Henriques L. Marrelli P. Lomas F. Rimini D. Terranova
The presence of Error Fields (EFs) in magnetic fusion devices can affect energy confinement and plasma stability by braking plasma rotation, by inducing fast particle losses and being amplified when exploring high-b regimes. The resulting EF Locked Modes (LMs) can be stabilized by NBI injection through the rotation shielding mechanism. However, …
Preprint Published2019
UKAEA-CCFE-CP(19)51
46th European Physical Society Conference on Plasma Physics (EPS), Milan, 8-12 July 2019
M.S. Anastopoulos-Tzanis C.H. Ham H.R. Wilson
H-mode tokamak plasmas are typically characterised by quasi-periodic instabilities called edge localised modes (ELMs) driven by unstable peeling-ballooning modes [1]. For large scale fusion power plants, the predicted particle and heat fluxes are unacceptable, and an active ELM control method is required. One promising method relies on t…
Preprint Published2019
UKAEA-CCFE-CP(19)50
14th International Symposium on Fusion Nuclear Technology (ISFNT-14) Budapest,Hungary, 22-27 September 2019
Maria Lorena Richiusa Wayne Arter Dominic Calleja Medhi Firdaouss Jonathan Gerardin Michael Kovari Francesco Maviglia Zsolt Vizvary
Within the framework of EUROfusion DEMO First Wall and limiter design activities, the protection of the First Wall against power deposition peaks is being considered. During steady-state operation, the radiative power from the plasma could be considered uniformly spread on plasma-facing components. However, the presence of openings (i.e. g…
Preprint Published2019
UKAEA-CCFE-CP(19)49
9th International Conference on Industrial Computed Tomography, Padua, Italy, 13-15 February 2019
Llion M. Evans T. Minniti T. Barrett A. von Muller L. Margetts
This paper presents the application of the image-based finite element method (IBFEM) to quantify the impact of micro-structure caused by manufacturing processes on the performance of fusion energy heat exchangers. The components, containing tungsten, were imaged with high-power lab-based X-ray CT and neutron CT. Volume data was converted into part-…
Preprint Published2019
UKAEA-CCFE-CP(19)48
46th European Physical Society Conference on Plasma Physics (EPS), Milan, 8-12 July 2019
K D Lawson M Groth D Harting S Menmuir D Reiter K M Aggarwal S Brezinsek I H Coffey G Corrigan F P Keenan C F Maggi A G Meigs M G O’Mullane S Wiesen JET Contributors
An understanding of the plasma edge and divertor is essential for predicting the performance of next-step machines such as ITER. Transport codes used to study the divertor behaviour [1] employ atomic physics data in two applications. The first is to predict the power radiated by the fuel and impurity atoms, which is carried out as a post-processing…
Preprint Published2019
UKAEA-RACE-CP(19)02
13th ITS European Congress, Amsterdam, 3-6 June 2019
Garry Staunton
One of the primary benefits from automated/autonomous vehicles (AV) is the promise of increased road safety through reductions in the number of driver error-induced accidents, where an often-cited statistic is that around 90% of all motor vehicle crashes are caused by human error. The flip-side of this is that one of the greatest barriers to the wi…
Preprint Published2019
UKAEA-RACE-CP(19)03
13th ITS European Congress, Amsterdam, 3-6 June 2019
David J Trousdale Garry M Staunton
Whilst Connected and Autonomous Vehicles (CAV) hold the promise of relegating the driver to passenger by transforming vehicles into intelligent platforms able to ‘read’ and ‘sense’ their environment. A corollary of this is that not only will these vehicles transform how people get from A-to-B, they will be a major source of information whic…
Preprint Published2020
UKAEA-CCFE-CP(19)47
46th European Physical Society Conference on Plasma Physics (EPS), Milan, 8-12 July 2019